Improvement in machines for making shoe-nails



UNITE-D STATES lPATENT einen.

WILLIAM H. FIELD, 0F TAUNTON, MASSACHUSETTS.

Specification forming part of Letters Patent No. 37,340, dated January 6, 1863.

all whom it may concern: Be it known that I, WILLIAM H. FIELD, of untonyin the county of Bristol and State of tssachusetts, have invented a new and use- Improvement .in Machines for Making oe-Nails; and I do hereby declare that the lowing is a full, clear, and exact description the same, reference' being had to the accom- ;iying drawings, forming a part of this hciflcation, in which- Eigure l represents a longitudinal vertical. ytion of my invention taken in the plane inated by the line m .'v, Fig. 2. Fig. 2 is a yn or top view of the same. iimilar letters of reference in both views inate corresponding parts. Chis invention consists in the arrangement t furnace, in com hina-tion with the cutter of ail-machine and with the plate from which nails are to be cut, in such a manner that d plate, while being fed to the machine, .ses through the furnace and is presented the cutter in a red-hot state. To enable others skilled in the art to make l use my invention, I will proceed to deibe its construction and operation with refnce to the drawings. t represents the cutter, -which is inserted i the cutter-head B, being made adjuste in the sameby means of set-screws, in usual manner. The cutter-head B is arged in a frame, C, being attached to the 1e by pivots or by a shaft passing through lower extremity of said cutter-head,'so t it swings freely backward and forward t vertical plane. The frame C, which cars the cutter-head, oscillates in a Vertical ne on pivots between the lugs a, which lect from 4the upright b of the main frame. i double oscillating motion of the cutter is duced in thefollowin g manner: The cuthead connects by a rod, b', with a crankft, c, to which a rotary motion is imparted means of a belt or in any other desirable iner. By the action ofthe crank the cuthead completes one oscillation for each )Iution of the shaft c. The frame C, which lies the cutter-head, connects by a rod, d, 1 a crank, e, which is secured to the ro- 'shaftjl This shaft receives motion by ns of gear-wheels g 7L from the driving- :'t c, and it is geared up in such a manner th at it makes one revolution while the drivingshaft makes two, and, furthermore, the motion of the cutter-head is brought in such a relation to the motion of the oscillating frame that the cutter acts whenever the frame has reached its extreme position toward one side or toward the other. The said plate may therefore be fed to the cutter in a rectilinear direction and without a side motion, the angular shape of the pieces cut off being produced entirely by the oscillating motion of the frame C. The crank e, which imparts motion to this frame, is slotted, so that the connecting-rod d can be shifted and the throw of the frame adjusted. The plate, which is indited in red outlines in the drawings, is fed to the cutter through a tubular channel, D, which passes through the furnace E. The furnace is arranged as close to the cutter as possible, and that portion of said channels which projects beyond the furnace is slotted to admit the projecting hook i of the nippers or tongs F. These nippers are forced toward the cutter by means of a weight, G, which is suspended from a rope or chain, j, and said rope or chain extends over a pulley, 7c, in the upper end ofthe upright b, and under a pulley, Z, in front of the furnace, and it connects with the hook i by means of a link, m.

The furnace is constructed with a suitable grate and ash-pan, and the feeding-tube eX- tends through it in such a position that the same, with the plate contained therein, becomes well heated.

The operation is as follows: Aftera fire has been built in the furnace and the furnace- .doors have been closedythe said plate is put in the nippers or tongs 4F and introduced into the feeding-tube D, and the link mis `hooked onto the end of the nippers. While passing through the furnace the plate is heated, and the cutting operation can be continued without interruption. By the oscillating motion of the cutter the plate is cut in to a number of wedge-shaped pieces suitable for shoe-nails. These nails drop down into a trough or a series of troughs, by which they are conducted to a suitable box or receptacle.

y It is obvious that my invention is applicable to nail-machines of difterent construction, and I do not want to confine myself to the precise construction previously described,

but as far as my experience now goes the furmachine,'and with the feedingtube D, cor

nace is of peculiar value when employed in structed and operating substantially in th the manner and combination herein shown. manner and for the purpose specified.

Having thus fully described my invention,

.what I claim as new, and desire to secure by WILLIAM H. FIELD.

Letters Patent, is- Witnesses:

The employment or use of a furnace, E, in S. E. TOWNSEND, combination with the cutter A of a shoe-nail NATHAN WILMARTH. 

